Patents by Inventor Peter Jarzem

Peter Jarzem has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120089227
    Abstract: An expandable vertebral prosthesis for replacement of a vertebral body includes opposed end plates that are respectively adapted to abut two other vertebral bodies for fastening engagement therewith and a hollow expandable body interconnecting the end plates. The end plates each define a central opening which extends therethrough for receiving bone growth. The hollow expandable body includes one or more annular body sections having concentric inner and outer side walls, the inner side wall of which defines therewithin a central channel axially extending between the central opening defined in each of the first and second end plates. The central openings have a bone graft or bone growth stimulating material therein and the central channel permitting bone growth therethrough. The hollow expandable body is axially expandable such as to extend from a collapsed position to an expanded position whereby a space left by the excised vertebral body.
    Type: Application
    Filed: December 16, 2011
    Publication date: April 12, 2012
    Inventor: Peter Jarzem
  • Publication number: 20100204794
    Abstract: A vertebral prosthesis (10) comprising opposed ends (14,16) interconnected by a tubular side wall (12), which enclose a cavity therewithin. An inlet port (18) in fluid flow communication with the cavity permits injection of a hardenable fluid into the cavity. The tubular side wall has an expanding bellows configuration which allows for expansion of the vertebral prosthesis in an axial direction (23) such that the ends are displaced away from each other when the cavity is filled with the hardenable fluid, thereby axially expanding the vertebral prosthesis from a collapsed position to an expanded position in order to fill a space between adjacent vertebral bodies (11,13). The vertebral prosthesis (10) has an expansion ratio, defined by a total axial height of the vertebral prosthesis in the expanded position divided by a total axial height of the vertebral prosthesis in the collapsed position, that is greater that 200 percent.
    Type: Application
    Filed: June 6, 2008
    Publication date: August 12, 2010
    Inventors: Peter Jarzem, Jean Ouellet, Marco Ferrone